"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 故障&可靠性测试
Case Name   : 主节点与级联备点备时间不同步
Create At   : 2021/03/02
@zou_jialiang0505328126
Description :
    1.创建表
    2.切换备为级联备
    3.配置级联节点备份延迟为2min
    4.设置备节点时间慢于主节点时间2min
    5.插入数据
    6.等待5s/2min/4min查询备
    7.设置备节点时间快于主节点时间2min
    8.删除数据
    9.等待5s查询
Expect      :
    1.创建成功
    2.切换成功
    3.配置成功
    4.修改成功
    5.插入数据成功
    6.4min才同步
    7.设置成功
    8.删除成功
    9.备机同步
History     :
    Modified by @wan005 2021/5/17:修改级联备查询同步方式
    Modified by @wan005 2021/09/09:修改级联备等待主备一致方法
"""

import unittest
import time
import datetime
from yat.test import Node
from testcase.utils.CommonSH import CommonSH
from testcase.utils.CommonSH import RestartDbCluster
from testcase.utils.Common import Common
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger


class RecoveryDelay(unittest.TestCase):
    commonshpri = CommonSH('PrimaryDbUser')
    nodes_tuple = ('PrimaryDbUser', 'Standby1DbUser', 'Standby2DbUser')

    @RestartDbCluster(*nodes_tuple)
    def setUp(self):
        self.log = Logger()
        self.compri = Common('PrimaryRoot')
        self.log.info('----Opengauss_Reliability_Dbsys_Case249.py 开始执行------')
        self.db_primary_root_node = Node(node='PrimaryRoot')
        self.db_standby_node =  Node(node='Standby1Root')
        self.comshsta = CommonSH('Standby1DbUser')
        self.constant = Constant()
        self.tb_name = 'tb_249'

        self.log.info('=====安装ntp服务=======')
        install_cmd = "yum install -y ntp && " \
                      "systemctl enable ntpd && systemctl start ntpd"
        result = self.db_primary_root_node.sh(install_cmd).result()
        self.log.info(result)
        result = self.db_standby_node.sh(install_cmd).result()
        self.log.info(result)

        self.log.info('------同步集群时间--------')
        current = self.db_primary_root_node.sh(
            "date \"+%m/%d/%Y %H:%M:%S\"").result()
        self.log.info(current)
        datecmd = f'date -s "{current}";hwclock --systohc;' \
            f'service ntpd stop;ntpdate ntp.api.bz;service ntpd start'
        result = self.db_standby_node.sh(datecmd).result()
        self.log.info(datecmd)
        self.log.info(result)

    def test_recoverydelay(self):
        self.log.info('-------将备节点切换为级联备---------')
        result = self.comshsta.buildStandby('-M cascade_standby')
        self.assertIn(self.constant.REBUILD_SUCCESS_MSG, result)
        result = self.comshsta.exec_refresh_conf()
        self.assertTrue(result)

        self.log.info('--------创建表-------')
        sql = f"drop table if exists {self.tb_name};" \
            f"create table {self.tb_name}(i int, s char(10));"
        result = self.commonshpri.executDbSql(sql)
        self.log.info(result)
        self.assertIn(self.constant.TABLE_CREATE_SUCCESS, result)

        self.log.info('-----设置recovery_min_apply_delay=2min----')
        result = self.commonshpri.executeGsguc(
            'reload', self.constant.GSGUC_SUCCESS_MSG,
            'recovery_min_apply_delay=2min')
        self.assertTrue(result)

        self.log.info('--------等待主备一致------------')
        for i in range(90):
            result = self.commonshpri.check_cascade_standby_consistency()
            if result:
                break
            time.sleep(20)
        self.assertTrue(result)

        self.log.info('--------设置备节点时间慢于主节点时间2min--------')
        current_time = self.db_primary_root_node.sh(
            'date "+%Y-%m-%d %H:%M:%S"').result()
        self.log.info(current_time)
        current = datetime.datetime.strptime(current_time, "%Y-%m-%d %H:%M:%S")
        final = (current +
                 datetime.timedelta(minutes=-2)).strftime("%Y-%m-%d %H:%M:%S")
        zone_cmd = f"date -s '{final}' && " \
            "hwclock --systohc;service ntpd stop;" \
            "ntpdate ntp.api.bz;service ntpd start"
        result = self.db_standby_node.sh(zone_cmd).result()
        self.log.info(result)

        self.log.info('--------插入数据-------')
        sql = f"select sysdate;" \
            f"insert into {self.tb_name} values(1,'test');"
        result = self.commonshpri.executDbSql(sql)
        self.log.info(result)
        self.assertIn('INSERT', result)

        self.log.info('--------等待5s/2min/4min查询备-------------------')
        time.sleep(5)
        sql = f"select sysdate;select * from {self.tb_name};"
        result = self.comshsta.executDbSql(sql)
        self.log.info(result)
        self.assertIn('(0 rows)', result)
        time.sleep(120)
        result = self.comshsta.executDbSql(sql)
        self.log.info(result)
        self.assertIn('(0 rows)', result)
        time.sleep(140)
        result = self.comshsta.executDbSql(sql)
        self.log.info(result)
        self.assertIn('1 | test', result)

        self.log.info('--------设置备节点时间快于主节点时间2min--------')
        current_time = self.db_primary_root_node.sh(
            'date "+%Y-%m-%d %H:%M:%S"').result()
        self.log.info(current_time)
        current = datetime.datetime.strptime(current_time, "%Y-%m-%d %H:%M:%S")
        final = (current +
                 datetime.timedelta(minutes=+2)).strftime("%Y-%m-%d %H:%M:%S")
        zone_cmd = f"date -s '{final}' && " \
            "hwclock --systohc;service ntpd stop;" \
            "ntpdate ntp.api.bz;service ntpd start"
        result = self.db_standby_node.sh(zone_cmd).result()
        self.log.info(result)

        self.log.info('--------更新数据-------')
        sql = f"select sysdate;" \
            f"delete from {self.tb_name};"
        result = self.commonshpri.executDbSql(sql)
        self.log.info(result)
        self.assertIn('DELETE', result)

        self.log.info('----------等待5s查询备---------------')
        time.sleep(5)
        sql = f"select sysdate;select * from {self.tb_name};"
        result = self.comshsta.executDbSql(sql)
        self.log.info(result)
        self.assertIn('(0 rows)', result)

    def tearDown(self):
        self.log.info('-----------------------------环境清理--------------------')
        self.log.info('-------------还原recovery_min_apply_delay----------')
        result = self.commonshpri.executeGsguc(
            'set', self.constant.GSGUC_SUCCESS_MSG,
            'recovery_min_apply_delay=0')
        self.log.info(result)

        self.log.info('--------还原集群-------')
        self.comshsta.buildStandby('-M standby')
        result = self.comshsta.exec_refresh_conf()
        self.log.info(result)

        self.log.info('-----------重启数据库-----------')
        result = self.commonshpri.stopDbCluster()
        self.log.info(result)
        result = self.commonshpri.startDbCluster()
        self.log.info(result)

        self.log.info('------还原备节点时间--------')
        current = self.db_primary_root_node.sh(
            "date \"+%m/%d/%Y %H:%M:%S\"").result()
        self.log.info(current)
        datecmd = f'date -s "{current}";hwclock --systohc;' \
            f'service ntpd stop;ntpdate ntp.api.bz;service ntpd start'
        result = self.db_standby_node.sh(datecmd).result()
        self.log.info(datecmd)
        self.log.info(result)

        time.sleep(5)
        self.log.info('--------删除表-------')
        sql = f"drop table if exists {self.tb_name};"
        result = self.commonshpri.executDbSql(sql)
        self.log.info(result)
        self.log.info('---Opengauss_Reliability_Dbsys_Case249.py 执行结束-------')